node2:/var/www/html/js#cat a17.html
<p>测试1</p>
<p>测试2</p>
<p>测试3</p>
<p>ggg</p>
<script type="text/javascript" src="jquery-2.2.2.min.js"></script>
<script type="text/javascript" src="a17.js"></script>
node2:/var/www/html/js#
node2:/var/www/html/js#cat a17.js
var items= document.getElementsByTagName("p");
console.log(items);
获取 var items= document.getElementsByTagName("p"); 返回数组
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转载自blog.csdn.net/zhaoyangjian724/article/details/86290768
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